POP email account help

I have set up my Yahoo account and it works great but my POP account is not so good. I receive only 50% of my incoming emails and sometimes the outgoing emails from the iPhone are rejected by the server, other times they are not. I have used the settings straight from my mail application, with roadrunner. Any ideas or help why I can only receive some emails?

Do you have anything else checking this account? With POP its first come first serve so which ever device checks mail before the other will get the mail and the other will not. This is why IMAP is nice.

The only device is the iPhone. I receive the emails in my Mail application but they rarely make it over to the iPhone. Even if I don't open the emails in Mail, they just don't appear on the phone. Weird. Maybe I just don't understand how POP works but I was hoping new emails would show up in Mail and on the phone. Yahoo on the other hand works great.

POP is like a post office box. If the iPhone goes and gets mail first and takes it to its home, the computer will no get any of that mail but will get any new mail that arrived since the last time the iPhone was there. Its like the wife going to the post office mid-day and getting all the mail, the husband will find none later after work. You do not need to open it to take it.

IMAP is sorts like a mirror. The mail stays at the post office, yet many people can view the same stuff anywhere. What they see though is a reflection of what is there. The nice thing is everyhing is synced. If one person deletes something, it affects all. New messages work the same way and once marked read, everyone sees it was read. No need to read the bills twice!

Well the thing is as long as the mail is left on the server - the clients accessing should just be downloading copies. We're having the same issue - either the mail goes to outlook (on PCs) or then to the iPhone, but not both (and yes both are set to not remove the message from the server).

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